Article
Materials Science, Ceramics
Sarah Malik, Iftikhar Hussain Gul, Mutawara Mahmood Baig
Summary: In this study, a composite electrode material of graphene nanoplatelets with ternary metal oxide MNC was synthesized and investigated for its excellent electrochemical properties, higher specific capacity, and improved charge stability. The synthesized material shows potential as an effective electrode material for supercapacitors.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Munan Lu, Yi Cao, Yufeng Xue, Wenfeng Qiu
Summary: Graphene oxide/lanthanum titanate fiber composites prepared through a hydrothermal method showed high specific capacitance and energy density in a 1M H2SO4 and 10wt% sucrose aqueous solution electrolyte. The composites could be promising materials for energy storage applications.
Article
Chemistry, Physical
Badr A. Mahmoud, Abdulmajid A. Mirghni, Kabir O. Oyedotun, Oladepo Fasakin, Ncholu Manyala
Summary: The NH4(NiCo)PO4•H2O/GF composite exhibited improved electrochemical performance in hybrid supercapacitors, with higher specific capacity and specific energy. The device showed high columbic efficiency and self-discharge efficiency in long-term stability tests.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Multidisciplinary
Huihui Zhang, Dan Yang, Alan Lau, Tianyi Ma, Han Lin, Baohua Jia
Summary: Graphene-based supercapacitors have attracted attention due to their excellent properties, but face limitations in electrode surface area and conductivity. Hybridizing graphene with other species to improve performance is necessary. This review discusses different hybridization principles and summarizes recent progress and future directions for hybridized graphene electrodes.
Article
Chemistry, Physical
Min Fu, Zhihao Zhang, Zitong Zhu, Qingru Zhuang, Wei Chen, Hao Yu, Qingyun Liu
Summary: This study synthesized uniform strontium ferrite nanorods on graphene to create SrFe12O19 NR/G composites, which exhibited excellent capacitance performance and energy density power density characteristics. The influence of component ratio on the electrochemical performances of the composites was thoroughly studied.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Kethaki Wickramaarachchi, Manickam Minakshi Sundaram, David J. Henry, Xiangpeng Gao
Summary: Electrolytic manganese dioxide (EMD) synthesized with alginate as a biopolymer additive demonstrated enhanced energy storage capability for electrochemical supercapacitors. The presence of alginate in higher concentrations altered the morphology and particle size of the EMD composites, resulting in a more favorable condition for binding Mn2+ ions and improving capacitance. When coupled with activated carbon, the EMD composite exhibited excellent capacitance retention over 5000 cycles, showing promising potential for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
M. Geerthana, S. Prabhu, R. Ramesh
Summary: Transition metal oxide decorated graphene nanosheets have shown great potential in electrochemical energy storage, especially in supercapacitors. In this study, ternary alpha-Fe2O3/MnO2/rGO composites were synthesized using a solvothermal route and demonstrated excellent performance in energy storage devices.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Baocheng Liu, Zongsheng Cao, Zhengchun Yang, Wen Qi, Jie He, Peng Pan, Huayi Li, Ping Zhang
Summary: In this study, graphene/MnO2 composites were prepared by growing MnO2 nanosheets on the surface of graphene using a water bath method, and the addition of black phosphorus was found to significantly improve the capacitive performance of the material. The fabricated micro-supercapacitor demonstrated high specific capacitance and was integrated with a flexible thin-film pressure sensor for practical applications.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Review
Nanoscience & Nanotechnology
Xuguang Cao, Chengming Jiang, Nan Sun, Dongchen Tan, Qikun Li, Sheng Bi, Jinhui Song
Summary: Hydrogel-based supercapacitors with excellent mechanical properties can provide a durable and reliable power source for truly wearable electronics. The high ionic conductivity of hydrogel electrolyte components allows for additional functions such as ultrahigh stretchability, strong self-healability, and low-temperature tolerance, making these multifunctional supercapacitors suitable for various extreme working environments.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2021)
Article
Chemistry, Physical
Zahir Abbas, Pranav Tiwari, Viresh Kumar, Shaikh M. Mobin
Summary: The past decades have witnessed significant advancements in the innovation of 2D layered materials, particularly in the fields of clean energy and energy storage. This study presents a novel and facile synthesis pathway for high-quality co-exfoliated 2D nanosheets of MoS2 and graphene (G) hybrid, demonstrating superior performance in supercapacitors.
SUSTAINABLE ENERGY & FUELS
(2022)
Review
Chemistry, Inorganic & Nuclear
Manickam Minakshi, Kethaki Wickramaarachchi
Summary: An electrochemical asymmetric capacitor is a device with different electrodes that has high power and long cycle life. By using novel materials processing, the energy density and power density of the device can be improved. Manganese di-oxide (MnO2) and activated carbon (AC) are paired as positive and negative electrodes, and simple modifications to the synthesis can catalyze changes in storage properties.
PROGRESS IN SOLID STATE CHEMISTRY
(2023)
Article
Energy & Fuels
Sukanya Maity, J. E. Madhusree, Bhimaraya R. Biradar, Pranay R. Chandewar, Debaprasad Shee, Partha Pratim Das, Sib Sankar Mal
Summary: Supercapacitors are emerging as a high-performance, safe, clean, and economical way to store and release nonfossil energy. Designing hybrid materials by integrating double-layer and pseudocapacitive materials is crucial to achieving high-power and high-energy storage devices simultaneously. The synthesized polyoxomolybdate-polypyrrole-graphene oxide nanohybrid exhibits excellent interfacial contact, fast redox reaction, and high specific energy and power.
Article
Chemistry, Multidisciplinary
Prasit Pattananuwat, Rojana Pornprasertsuk, Jiaqian Qin, Suchittra Prasertkaew
Summary: The well-designed PPy/N-rGO cathode composites enable high capacity and energy density for aqueous zinc-ion hybrid supercapacitors, with excellent cycling stability and high-rate capabilities. These novel zinc-ion hybrid supercapacitors show promise for practical use in a wide range of applications, from next-generation electronic devices to large-scale stationary energy storage.
Article
Chemistry, Physical
Yang Zhou, Xinying Cheng, Feng Huang, Zhao Sha, Zhaojun Han, Junyan Chen, Wenmu Yang, Yuyan Yu, Jin Zhang, Shuhua Peng, Shuying Wu, Andrew Rider, Liming Dai, Chun H. Wang
Summary: A new approach to create hierarchically structured electrodes for supercapacitors allows them to retain capacity under mechanical deformation, enabling the fabrication of high-performance moldable energy storage devices for wearable electronics and wireless electronic skins.
Article
Chemistry, Multidisciplinary
Zhenyuan Xia, Viktoriia Mishukova, Szymon Sollami Delekta, Jinhua Sun, Jaime S. Sanchez, Jiantong Li, Vincenzo Palermo
Summary: Interdigitated all-solid-state flexible asymmetric micro-supercapacitors fabricated by a facile pulse current deposition approach demonstrate high volumetric capacitance, wide operation potential range, and long cycle life, showing potential for future high-performance energy storage devices.
Article
Engineering, Environmental
Christos Chatzilias, Eftychia Martino, Sotirios Tsatsos, Georgios Kyriakou, Alexandros Katsaounis, Constantinos G. Vayenas
Summary: In this study, the kinetic mechanism of CO2 hydrogenation was investigated using a scaled up electropromoted reactor loaded with nine Ru/YSZ/Au electrochemical cells. The results show that the partial pressures of H2 and CO2 have a significant impact on the product distribution and reaction rate. Additionally, the experiment validates the charge transfer behavior during the electrochemical promotion process.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
B. Hasa, E. Martino, S. Tsatsos, J. Vakros, G. Kyriakou, A. Katsaounis
Summary: Pt-based electrocatalysts, both monometallic and bimetallic, synthesized using graphene as the support, showed improved performance for the electrocatalytic oxidation of methanol. The interaction between metal particles and carbon support, as well as the surface structure and electronic interaction, played crucial roles in the electrocatalytic activity.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Biotechnology & Applied Microbiology
Ioanna A. Vasiliadou, Achilleas Kalogiannis, Apostolos Spyridonidis, Alexandros Katsaounis, Katerina Stamatelatou
Summary: The study demonstrates that CO2 can be efficiently converted into CH4 in an H-type BES by applying different potentials, with the best performance achieved at a potential of -0.9 V. Additionally, the electroactive behavior of the biocathode plays a crucial role in the overall operation of the bioelectrochemical system.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Byung Hee Ko, Bjorn Hasa, Haeun Shin, Yaran Zhao, Feng Jiao
Summary: This research demonstrates a method of reducing gaseous NOx emissions at ambient temperatures through an electrochemical pathway. The study found that copper has a high selectivity towards NH3 formation, and a high NO coverage facilitates the N-N coupling reaction. This work provides a promising avenue for reducing gaseous NOx emissions at ambient conditions using renewable electricity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Alexander A. Khechfe, Mark M. Sullivan, Dimitrios Zagoraios, Alexandros Katsaounis, Constantinos G. Vayenas, Yuriy Roman-Leshkov
Summary: This study demonstrates the non-Faradaic electrochemical promotion of a Bronsted acid-catalyzed reaction over a metal oxide surface. The promotion is believed to originate from the generation of Bronsted acid sites localized to the three-phase boundary at the catalyst/gas/electrolyte interface and/or acid site strengthening due to electrical polarization. The effect is reversible and does not appear to permanently alter the chemistry of the Mo film.
Article
Chemistry, Physical
Dimitrios Zagoraios, Nikoletta Kokkinou, Georgios Kyriakou, Alexandros Katsaounis
Summary: The present study demonstrates the in situ formation and stabilization of nickel oxide on an oxygen ion conductor/solid electrolyte using electrochemistry. It also shows that electrochemical promotion of catalysis (EPOC) and electrochemical oxidation can enhance the activity of the reverse water gas shift (RWGS) reaction. The results provide a new approach for in situ catalyst activation and regeneration in the modern heterogeneous catalysis industry.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Spyridon Giannakopoulos, Petros Kokkinos, Bjorn Hasa, Zacharias Frontistis, Alexandros Katsaounis, Dionissios Mantzavinos
Summary: This study evaluated the degradation of diclofenac by electrochemical oxidation and found that current intensity, initial concentration of substrate, irradiation, and pH had an effect on the degradation efficiency. The concentration of chloride ions and current intensity increased the degradation rate, while the initial concentration of diclofenac decreased it. The concentration of bicarbonate ions slightly reduced the process yield. UV A irradiation did not accelerate diclofenac decomposition, while lower pH values contributed to faster degradation.
Article
Chemistry, Physical
Christos Chatzilias, Eftychia Martino, Constantinos G. Vayenas, Georgios Kyriakou, Alexandros Katsaounis
Summary: This study demonstrates a method to effectively promote catalytic reactions using limited power generated by low-temperature fuel cells, reducing energy consumption and environmental impact. By designing a novel low-temperature fuel cell reactor and utilizing internal power, electrochemical promotion of CO2 hydrogenation has been achieved.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Review
Chemistry, Applied
Bjorn Hasa, Yaran Zhao, Feng Jiao
Summary: Electrocatalytic conversion of carbon dioxide to valuable chemicals and fuels driven by renewable energy is vital for achieving net-zero carbon emissions. Understanding the structure-activity relationship and reaction mechanism is crucial for improving electrocatalyst selectivity. However, characterizing catalyst dynamic evolution and reaction intermediates under reaction conditions remains challenging. This article provides a summary of recent progress in mechanistic understanding of heterogeneous CO(2)/CO reduction using in situ/operando techniques, along with insights and perspectives to accelerate future development of these techniques.
ANNUAL REVIEW OF CHEMICAL AND BIOMOLECULAR ENGINEERING
(2023)
Article
Chemistry, Physical
Nikoleta Kokkinou, Fotios Xydas, Susanne Brosda, Georgios Kyriakou, Alexandros Katsaounis
Summary: Electrochemical promotion was used to enhance the activity and selectivity of a Rh catalyst electrode in the CO2 hydrogenation reaction. Experiments were conducted at temperatures ranging from 350 to 430 degrees Celsius and with varying CO2 to H2 gas feeding ratios. The main reaction products observed were CO and CH4, and their formation rates were influenced by the applied potential or current. The results demonstrate the potential of electrochemical promotion for fine-tuning the activity and selectivity of reactions with significant technical and environmental importance.
Article
Environmental Sciences
Andreas K. Benekos, Ioanna A. Vasiliadou, Athanasia G. Tekerlekopoulou, Maria Alexandropoulou, Stavros Pavlou, Alexandros Katsaounis, Dimitris V. Vayenas
Summary: A research on a continuous flow hydrogenotrophic denitrification system for groundwater treatment was conducted. Two bench-scale packed-bed reactors were used without external adjustment or addition of carbon source, using inorganic carbonate salts in the groundwater as the sole carbon source. The system generated hydrogen through water electrolysis using renewable energy sources to reduce resource consumption. Different operating parameters were tested to evaluate the system's efficiency, and significant nitrate removal was achieved in all cases. A post-treatment electrochemical oxidation process was also examined to remove nitrite accumulation. Finally, an advanced mathematical model was developed to predict substrate concentrations in the bio-filter.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Andriana Lymperi, Christos Chatzilias, Fotios Xydas, Eftychia Martino, Georgios Kyriakou, Alexandros Katsaounis
Summary: The hydrogenation of CO2 is crucial for sustainable fuel production and greenhouse gas reduction. Electrochemical promotion of catalysis (EPOC) has shown potential in improving catalytic activity and selectivity in this reaction. Designing an effective electrocatalytic reactor remains a challenge, but the use of a low-temperature solid oxide electrolyte fuel cell (SOFC) reactor has been studied for promoting CO2 hydrogenation.
Article
Chemistry, Physical
Bjorn Hasa, Luke Cherniack, Rong Xia, Ding Tian, Byung Hee Ko, Sean Overa, Panagiotis Dimitrakellis, Chulsung Bae, Feng Jiao
Summary: Performing carbon monoxide reduction in a membrane electrode assembly (MEA) configuration is crucial for achieving high reaction rate and reducing cell resistance. Previous studies mainly focus on the role of the cathode in product selectivity and cell stability, while the impact of the membrane on cell performance has received less attention. This study demonstrates that membrane properties, including water uptake, ion-exchange capacity, and functional groups, can alter the selectivity of liquid products. Interestingly, high ethanol crossover in combination with a suitable anode (Ni-FeOx) can tune the selectivity of acetate. Overall, membrane properties significantly affect cell stability and product selectivity in a membrane electrode assembly configuration.
Article
Energy & Fuels
M. Ahmadifar, K. Benfriha, M. Shirinbayan, A. Aoussat, J. Fitoussi
Summary: This study investigates the impact of innovative polymer-metal interface treatment on the reliability and robustness of hydrogen storage technology. A scaled-down demonstrator was fabricated using rotomolding to examine the mechanical characteristics, damage, and fatigue behaviors of the metal-polymer interface. The findings reveal that sandblasting treatment enhances the resilience of the interface.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
A. A. Kandil, Mohamed M. Awad, Gamal I. Sultan, Mohamed S. Salem
Summary: This paper proposes a novel hybrid system that splits solar radiation into visible and thermal components using a beam splitter and integrates a phase change material (PCM) packed bed with a PV cell. Experimental and theoretical analyses show that the hybrid configuration significantly increases the net power output of the system compared to using a PV system alone.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Jinchao Li, Ya Xiao, Shiqiang Lu
Summary: The combination of energy storage and microgrids is crucial in addressing the uncertainty of distributed wind and solar resources. This article proposes a multi microgrid interaction system with electric-hydrogen hybrid energy storage, which optimizes the system's capacity configuration to improve its economy and reliability.
JOURNAL OF ENERGY STORAGE
(2024)
Review
Energy & Fuels
Shri Hari S. Pai, Sarvesh Kumar Pandey, E. James Jebaseelan Samuel, Jin Uk Jang, Arpan Kumar Nayak, HyukSu Han
Summary: This review discusses the structure-property relationship of nickel oxide nanostructures as excellent supercapacitive materials and provides an overview of various preparation methods and strategies to enhance specific capacitance. It comprehensively analyzes the current status, challenges, and future prospects of nickel oxide electrode materials for energy storage devices.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Xiaowei Wu, Xin Dong, Ziqin Liu, Xinyi Wang, Pu Hu, Chaoqun Shang
Summary: The growth of Li dendrites in lithium metal batteries is effectively controlled by constructing a three-dimensional framework on the surface of Li using Ni(OH)2 nanosheets modified Prussian blue tubes. This method provides a homogenous Li+ flux and sufficient space to accommodate the volume change of Li, resulting in suppressed dendrite growth and improved cycling performance.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Yan-Jie Liao, Yi-Yen Hsieh, Yi-Chun Yang, Hsing-Yu Tuan
Summary: We present two-dimensional AgInP2Se6 (AIPSe) bimetallic phosphorus trichalcogenides nanosheets as anodes for advanced alkali metal ion batteries (AMIBs). The introduction of bimetallic components enhances the electronic/ionic conductivity and optimizes the redox dynamics, resulting in superior electrochemical performance. The AIPSe@G anodes achieve high specific capacity, excellent cycle stability, and rate capability in both lithium-ion (LIBs) and potassium-ion batteries (PIBs). The comprehensive full cell tests further demonstrate the stability of AIPSe@G anodes under diverse current regimes.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Chenghu Wu, Weiwei Li, Tong Qian, Xuehua Xie, Jian Wang, Wenhu Tang, Xianfu Gong
Summary: In the context of increasing global environmental pollution and constant increase of carbon emission, hydrogen production from surplus renewable energy and hydrogen transportation using existing natural gas pipelines are effective means to mitigate renewable energy fluctuation, build a decarbonized gas network, and achieve the goal of carbon peak and carbon neutral in China. This paper proposes a quasi-steady-state modeling method of a hydrogen blended integrated electricity-gas system (HBIEGS) considering gas linepack and a sequential second-order cone programming (S-SOCP) method to solve the developed model. The results show that the proposed method improves computational efficiency by 91% compared with a general nonlinear solver.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Jingcen Zhang, Zhi Guo, Yazheng Zhu, Haifeng Zhang, Mengjie Yan, Dong Liu, Junjie Hao
Summary: In this study, a new type of sensible heat storage material was prepared using low-cost steel slag as the main component, providing an effective way of recycling steel slag. By analyzing the effects of different pretreatment steel slag content and sintering temperatures on the organization and properties of heat storage materials, the study found that the steel slag heat storage material exhibited excellent performance and stability under certain conditions.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
D. Carrillo-Pena, G. Pelaz, R. Mateos, A. Escapa
Summary: Methanogenic biocathodes have the potential to convert CO2 and electricity into methane, making them suitable for long-term electrical energy storage. They can also function as biological supercapacitors for short-term energy storage, although this aspect has received less attention. In this study, carbon-felt-based MB modified with graphene oxide were investigated for their electrical charge storage capabilities. Results showed that the potential of the electrode during discharging plays a significant role in determining the charge storage capacity.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Marco Gambini, Federica Guarnaccia, Michele Manno, Michela Vellini
Summary: This paper presents an analytical assessment of the energy-power relationship for different material-based hydrogen storage systems. It explores the impact of power demand on the amount of discharged hydrogen and the utilization factor. The results show that metal hydrides have higher specific power compared to liquid organic hydrogen carriers. The study provides insights into the discharge duration and energy utilization of hydrogen storage systems.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Shujahadeen B. Aziz, Rebar T. Abdulwahid, Pshko A. Mohammed, Srood O. Rashid, Ari A. Abdalrahman, Wrya O. Karim, Bandar A. Al-Asbahi, Abdullah A. A. Ahmed, M. F. Z. Kadir
Summary: This study investigates a novel biodegradable green polymer electrolyte for energy storage. Results show that the sample with added glycerol has the highest conductivity. The primary conduction species in the electrolyte are ions. Testing confirms that the sample can withstand a voltage suitable for practical applications.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Binit Kumar, Abhishek Awasthi, C. Suresh, Yongseok Jeon
Summary: This study presents a new numerical model for effective thermal conductivity that overcomes the limitations of previous models. The model can be applied to various shapes and phase change materials, using the same constants. By incorporating the natural convection effect, the model accurately calculates the thermal conductivity. The results of the study demonstrate the effectiveness of the model for different shapes and a wide range of alkanes.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Supak Pattaweepaiboon, Wisit Hirunpinyopas, Pawin Iamprasertkun, Katechanok Pimphor, Supacharee Roddecha, Dirayanti Dirayanti, Adisak Boonchun, Weekit Sirisaksoontorn
Summary: In this study, electrode powder from spent zinc-carbon/alkaline batteries was upcycled into LiMn2O4 cathode and carbon anode for rechargeable lithium-ion batteries. The results show that the upcycled LiMn2O4 exhibits improved electrochemical performance, with higher discharge capacity compared to pristine LiMn2O4. Additionally, the recovered carbon materials show superior cycling performance. This research provides great potential for upcycling waste battery electrodes to high-value cathode and anode materials for lithium-ion battery applications.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
Pan Yang, H. D. Yang, X. B. Meng, C. R. Song, T. L. He, J. Y. Cai, Y. Y. Xie, K. K. Xu
Summary: This paper introduces a novel multi-task learning data-driven model called GBLS Booster for accurately assessing the state of health (SOH) and remaining useful life (RUL) of lithium batteries. The model combines the strengths of GBLS and the CNN-Transformers algorithm-based Booster, and the Tree-structured Parzen Estimator (TPE) algorithm is used for optimization. The study devises 10 healthy indicators (HIs) derived from readily available sensor data to capture variations in battery SOH. The random forest method (RF) is employed for feature refinement and data dimension reduction, while the complete empirical mode decomposition (CEEMDAN) method and the Pearson correlation coefficient are used for noise reduction and data point elimination in RUL prediction. The proposed model demonstrates exceptional accuracy, robustness, and generalization capabilities.
JOURNAL OF ENERGY STORAGE
(2024)
Article
Energy & Fuels
M. Arrinda, M. Oyarbide, L. Lizaso, U. Osa, H. Macicior, H. J. Grande
Summary: This paper proposes a robust aging model generation methodology for lithium-ion batteries with any kind of lab-level aging data availability. The methodology involves four phases and ensures the robustness of the aging model through a verification process.
JOURNAL OF ENERGY STORAGE
(2024)